title: Polychlorinated dibenzo-p-dioxins and dibenzofurans detected in bivalve samples from the NOAA National Status and Trends Program.
abstract: Bivalve samples from 142 sites were analyzed to determine the concentration and toxicity equivalents (TEQ) of dioxins and furans (D/F) as part of the NOAA National Status and Trends Program. The total concentration of 17 D/F ranged from not detected to 203 pg/g wet weight of tissue. Octachlorinated dibenzo-p-dioxin, OCDD, had a concentration range from not detected to 189 pg/g and a mean concentration of 8.65 pg/g. OCDD was the dominant D/F compound detected and accounted for, on average, over 70% of the total D/F concentration. The TEQ (compared to 2,3,7,8-TCDD) ranged from 0.12 to 7.32 pg TEQ/g. The TEQ for 39% of the bivalves analyzed were below 0.238 pg TEQ/g. TEQ above human consumption advisory concentration of 1.2 pg TEQ/g were found in 9.3% of the samples analyzed. TEQ for D/F indicate very limited human health concerns from consumption of bivalves at most of the locations sampled.
authors.affiliation: Geochemical and Environmental Research Group, College of Geosciences, Texas A&M University, 833 Graham Road, College Station, TX 77845, USA. Electronic address: terry@gerg.tamu.edu.
authors.forename: Terry L
authors.initials: TL
authors.lastname: Wade
authors.affiliation: Geochemical and Environmental Research Group, College of Geosciences, Texas A&M University, 833 Graham Road, College Station, TX 77845, USA.
authors.forename: Stephen T
authors.initials: ST
authors.lastname: Sweet
authors.affiliation: Geochemical and Environmental Research Group, College of Geosciences, Texas A&M University, 833 Graham Road, College Station, TX 77845, USA.
authors.forename: José L
authors.initials: JL
authors.lastname: Sericano
authors.affiliation: Geochemical and Environmental Research Group, College of Geosciences, Texas A&M University, 833 Graham Road, College Station, TX 77845, USA.
authors.forename: Debra A
authors.initials: DA
authors.lastname: Defreitas
authors.affiliation: National Oceanic and Atmospheric Administrations, National Ocean Service, Center for Coastal Monitoring and Assessment, 402 4th Street SE, Cut Bank, MT 59427, USA. Electronic address: gglauenstein@gmail.com.
authors.forename: Gunnar G
authors.initials: GG
authors.lastname: Lauenstein
mesh_terms: D000818:Animals; D001572:Benzofurans / Q000378:metabolism*; D049872:Bivalvia / Q000378:metabolism*; D004147:Dioxins / Q000378:metabolism*; D006801:Humans; D000072317:Polychlorinated Dibenzodioxins / Q000031:analogs & derivatives* / Q000378:metabolism; D014874:Water Pollutants, Chemical / Q000378:metabolism*; D014877:Water Pollution, Chemical / Q000032:analysis / Q000706:statistics & numerical data*
chemical_list: D001572:Benzofurans; D004147:Dioxins; D000072317:Polychlorinated Dibenzodioxins; D014874:Water Pollutants, Chemical; C023614:dibenzofuran; C020887:dibenzo(1,4)dioxin
keywords: Coastal United States; Dioxin; Furan; Mussel; Oyster; TEQ